Platform-buffer.



J. MfWAUGH.

PLATFORM BUFFER.

APPLIOATION FILED NOV. 22, 1909.

1,056,863, Patented Mar. 25, 1913.

2 SHEETS-SHEET 1.

J. M. WAUGH.

PLATFORM BUFFER.

APPLICATION IILED NOV. 22, 1909. 1,056,863, Patented Mar. 25, 1913 2SHEETS-SHEET 2) UNITED STATES EATENT OFFICE.

JAMES MILTON WAUG-H, OF CHICAGO. ILLINOIS.

PLATFORM-BUFFER.

Application filed November 22, 1909. Serial No. 529,216.

I" It]! whom; it'may concern:

Be it known that I, JAMES M. -Warren, a citizen of the United States,and a resident of the city of Chicago, in the county of Cook and Stateof Illinois, havainvented certain new and'useful Improvements inPlatform-Buffers; and I do herebydeclare that the following is a full,clear, and exact description of the same, reference being had to theaccompanying drawings, and to the numbers of reference marked thereon,which arm a part of this specification.

This invention relates to that class of railway platform butters setforth in my prior application for patent therefor, filed September 28,1908, Serial No. 455,106, and in which the lateral butter stems werephysically connected .with one 'of th buffer springs. I

The object of this invention is to afford a construction permitting thelateral butter stems to move inwardly without resistance andcentralizing the butting stress immediately upon the cut ng gear.-

It is also an object of the invention to atford a constructionpermitting the utmost freedom of adjustment of the buffer platforms toadapt themselves to curves in the track and to afford a constructionacting at. all times to hold the extension for the buffer platformpositively engaged against the central buffer stem or bar.

It is an object of the invention also to afford a construction of .theutmost simplicity, durability and strength and in which the number ofparts are reduced tothe mimununand are easily accessible;

The invention consists in the matters hereinafter described and morefully pointed out and defined in the appended claims.

In the drawings: Figure 1 is a fragmentary top plan view of the underframe of a car with the platform butl'er attached. Fig. 2 is afragmentary section on iine 2-2 of Fig. 1. Fig. 3 is a fragmentarysection on line 33 of F ig. 2. Figs. 4 and 5 are sections taken on lines44 and 5-5 re spectively of Fig. 3, with the abutting heads inelevation;

As shown in the drawings: 1, indicates the center or draft sills betweenwhich is supported the draft and buffing gear 2, shown as a draft gearcom rising flat plates 3, and intermediate curve followers 4 and 5, allinclosed in a draft yoke 6, at its for- Spcclfication of Letters Patent.

Patented Mar. 25, 1913.-

ccntcr sills and bearing against said end sill 9.

Rigidly secured on the center sills at a sufficient distance at the rearof the end sill is the cross sill 12, and bolted thereto and,

through the center sills is a casing 13,. of

cast n'ic-tal or other suitable niaterial afi'ord ing within the same achamber for the re serve. hutt'cr gear. Within said casing and bearingagainst the forward face of thel cross sill is an abutment block orstopll, having a transversely convex or rounded face.

. Fitted in the casing thercagainst are aplurality of flat spring andfriction plates 15, of a length and width to permit the same to befreely movable within the casing when stood on edge transversely of.thccasing.

Bearing against the forward faces of the outermost of said plates attheir ends are spacing blocks 16, which taper inwardly,

and as shown, are connected by a plate 17. Bearing against said spacingblock' 16, is a second group of spring and friction plates 18, such asbefore described and bearing centrally thcreagainst is the roundedfollower block 19, the ends of which engage against the inwardlydirected flanges20, on said casing. Said follower block is provided withan integral forwardly directed rib 21, having a flat, forward, verticalface, as shown in Figs. 2 and 4. Slidably supported on the center sillsis a casing 22, provided with a rear wall 23, having a central elongatedaperture therethrough. Rigidly secured on the under side of said casingat its forward end is a butting bar 24, which at its rear end is rigidlyconnected with the main draft and butiinc gear at the point ofconnection of the yoke with the draw bar by means of the bolt 25, whichaffords the connection be tween the same, and as shown, said casing 22,is provided centraliy on its under side with a downwardly directedintegral extension 40, to aford connection with the forward end of saidbuffing bar and also to serve at its ends as guides to centralize saidcasing at all times on the sills 1.

Within the casing 22, is an abutment lie block 26, having its forwardsurface trans versely cnrved, as shown n Fig. 3, and extcudi-ngrearwartlly through the aperture in t the rear wall of said casing andintegral ""ith said abutment block is an elongated butting head 27,which, as showm is proided with a central transverse recess adapt- :cdto receive. the: forward face of the rib or iabutting lie-ad 21, in therear casin". Inserted in said casing and bearing against said rearabutment block, is a group of fiat spring steel plates 28, and separatedtherefrom by inwardly and convexly tapered spacing blocks 2.), connectedby the steel plate 30, is a second correspondin; group 31, of steelplates which, at their ends, bear on said spacing blocks 29.

Inserted in the forward open end of the casingis the rounded buttinghead 32,shaped similarly to the rear abutment block 26, before describedand bearing centrally on the group of: spring plates 3]. -daid buttinghead 32. is provided on its forward side with an integral. extensionhaving a central seat therein in whicli titted the rear or \inner end ofthe central buffing stem or bar- 34. This extends forwardly through a.suitable aperture in the end sill 9, and butting block it), and bears atits forward end at all *times against.- the butler plate 35. 1 Extendingslidably"through the end sill 9, -'and butting block 10, are the lateralbiifling stems 36, which titltiosely in the apertures the-rotor in saidmembers and at. their outer ends are pivota'lly connected, as shown, in

dotted lines in Fig. 1, with the inner face of the buffer 'plateI-ifi,and as shown, pulling springs 37, are. seci-ired on the. inner ends ofsaid butter stems by means of nuts, which permit the tension of saidsprings to be adjusted and act at all times to hold the butter plateinwardly or in 'other' words in contact.

with the central butler stem.

The platform construction otherwise isas usual, any suitable coveringplate 38, being employed to extend the platform beyond the end sill andonto the horizontal top plate 39, of the butter. 1

The operation is as follows: The parts are so rclatioued andproportioned that when two cars-arc coupled, the .act of coupling bringssutlirieutstress upon the butter plates to slightly llex the groups ofsprings 28, and 31, inasmuch as the transversely curved opposing facesofthe abutment block 26 and butler head 32, engage said groups cen-.trally while the spacing blocks 29, engage between sait'hgroups andatthe ends thereof. in ordinary coupling and when the cars are incoupled relation, very slight flexing of said spring is sutiicicnt tohold the butter plates at all times in positive engagement and toprevent. any separation thereof dur ing the movement of the train. Atthis time the inward movementof the platforms relieves all stress fromthe springs 37, and

the lateral butting stems, and -in consequence,

the movements of the butler are accom- .plished wholly through theaction of the.

21. into positive engagement, such shock is communicated andabsorbed.the auxilaary butling gear or that contained in the casing 13. Thisserves to absorb the stress of the shock whet-her imparted on thedrawhead or platform and serves as an emergency butting gear to absorbthose stresses that might otherwise be destructive. to the platformbutting gear. \Vhen pressure is relieved on the platforms the springs 28and 31 in the forward casing act to force the central butting stem orbar forwardly, carrying the butting plate therewith, and also thelateral butlingstems until said springs 37, are again brought. intotension in which event they serve at all times to support said butlingplate in operating position. i

' Of course, I amaw-are that details of this construction may be varied.I therefore do not purpose limiting this application for patentotherwise than necessitated by the prior art.

I claim as my invention:

1. A platform butler gear embracing a casing aflixed to the centervsills, convex and concave spacing members therein, a group of flatsprin and friction plates in contact face to face or their entire extentand intei posed between each convex and each concave spacing member, acasin slidably supported on the center sills an rigidly connected withthe main draft-gear, groups of spacing and friction plates in saidcasing, spacing members separating said sets of plates, abutting b'locksextending into the adjacent ends of said casings and. bearing againstthe spring plates and a. central butting stem actmg to communicate thestress in butting to the sets of. spring and friction plates in theslidable casing.

2. In a deviee of the class described the eombinationwith a carplatform, a butling platetmovably supported thereon at the end thereof,spring pressed bufiing stems pivoted to the buffer plate and extendingthrough the head, sill, and buffer block on the plat. form, a centralbutler stein adapted to hear at its outer end on the. butter plate, aslidable casing, a rigid bar connecting the same with a main dra t gear,groups of fiat leaf springs in said casing, concave spacing blocksbetween said groups and a rounded head on the central buffer stem actingto engage the forward group near its middle and an auxiliary absorbingdi siiniing' (-asing and.

buffing lvi\i 3, In a device of i. main draft gear. center 0nd sills ofa can. 0'? u him i u gcd cm kiwi e134. vi the m? p 1% mm by means ofrods piwiri mmwvt-sii ii with and extvnfliiig 5i); tin-9.: in the and Fiii rods and acting 0 dim: a (:Qntraii bniiitr wh m saisd: said endxiii, a piaiimiii Km 1 iking :i using; 91; wvmimi mi 5% WWW? siiis 51m?i'igii wii'u ii main draft gun", a pianist if piaiv s; 3

on (hi: central bHi PI' 5mm said casing and bearing flgfiifirji group ofpiiitos sawing: iii Fm: 0 sliding: CfiQiligI, :2 spring and fricagreater capacity semiirmi in said, 0 iii'sutn'mu'immniwis eximding mmings M adj-mm; ends iiVI-YPOf fliim" iii-r Waring iuwis m ingat iliiiii'iiiS agnimt Hi0 :uijmxent group of wring piai'vs and said ubuimentmeniiiers having inter fitting parts.

4 Tn a devim of the .31:: iicsmiiwii the combination wiih (he bufl'ingplate (ii iflt" errii bnfi'm stems pivot-idly (jfilil'ifiiwi tiuzreonand extending thinugii apmtui'ea in ii? (and sin of 1110 van. @pii'ziisprings esng'agm'i thereon and ufling to puii tin Salim) i1:- wzndiv tohsid said pint: in place) a canilili lmfiing bar 01' sivn. bearing:igninat \hi inner fame (if (he buii'uy 'piai'i; and :i \mfiing gun)imiuding a iiurziiity ings Gilii'i. having a pim'aiiitiy Ff flat springplan's ihvi'eiu and h sum 1' nuieiy at their miaifii ss and ti minim?LOKMPIQSfiiUIl. uric mi higrigidly swiuefi rm (in? cum; -,.i Hm min?!amiable thervoni and bends amending tiirmigh the miiiumii of said (mi gsinto hifliflfl, vngzng -mmii and mci'i {BYDVii *1 with 21 Emmi:iiivuiing an inner mundvd smfm-Q in iHiH' Am" i319 mijuwnt grmip hf sping plum;

Hie adjusmt walls of the mm :1: in Zia;

L. in :1 iivi ivv mi iiir (Ti.

(If iii(iv;wiiiiiwi. 1 2mm m a in 1 H1: oinu wiu'izlbifi suppuriuii, aspring friction buiiiiig grill in and) -nsing, a drai'i wau' 11ml ynkmimam rigidly connecting Liv minim?) casing t0 the yoke, and abut memhim-ks pmieciing mm saiii casings and intoi'fitting with (:rvh Mimi" andWing tn \ifiH'k'T iii: (is mifiing are m lh i-ig i i in:

in mi 51w pinz'uiiiy of ilUiiiliEiiif'lY! i in; (JUN mom, mm being a:xuppui Hw (Muir siiiifibiy Eeuppw a inctian s n-111g iimiiiiig gem ineach casing and ubui' 7 02:. tags in ilOYiZUI3- g i'agniiy supported6.14 (Rem? m1; in rid! Mu-mi in said casing a similara Ab! mpported onsaid minim mils and rigidly 00nnevted with the mam draft gear. a 43mmspomling arrangen'mnt of fiat spring flares-z in sand sii iing casing,and ahufling nerds "iunvmzy cm iiimwnlm.

